Answer:
Parabolic dunes
Explanation:
A parabolic dune is a U-shaped mound of sand. The tips point upwind because they are anchored by vegetation.
A is wrong. The tips of a barchan dune point downwind
C is wrong. A longitudinal dune is parallel to the prevailing wind.
D is wrong. The ridge of a transverse dune is perpendicular to the prevailing wind.
The tricuspid valve does this between the right atrium and ventricle. ... At the end of diastole, your heart's atria contract and pump blood into the ventricles. The atria then begin to relax. Next, your heart's ventricles contract and pump blood out of your heart.
That is true. Hope it helps!
Earth is considered an island because it is seen to float in the sea of outer space. <span />